Testing for persulfate is easy with the CHEMets® visual test kit K-7870. With this test you can measure anywhere between 0 to 70 ppm sodium persulfate in just 90 seconds. If you are in need of an instrumental test, CHEMetrics hydrogen peroxide Vacu-vials® kit K-5543 can be used to measure sodium persulfate by using a slightly modified procedure. Simply fill the sample cup, insert the Vacu-vials ampoule and snap the tip. Now mix and wait 90 seconds. Multiply your peroxide test results by 7 to convert to ppm sodium persulfate. Watch the video below to see these tests in action!